Selectable fire trigger mechanism

Ordnance – Automatic – Firing device operation or control

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89142, F41A 1946

Patent

active

056231148

ABSTRACT:
An improved trigger mechanism for weapons having full automatic fire capability. Exertion of a first predetermined trigger pressure enables the disconnector to engage the hammer in a semi-automatic fire mode. Exertion of a second, greater trigger pressure disables the disconnector, enabling a full automatic mode of fire.

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patent: 5115588 (1992-05-01), Bronsart et al.
patent: 5187312 (1993-02-01), Osborne
McLoughlin, Chris, "U.S. Military's Advanced Combat Rifle", Special Weapons vol. 10, pp. 54-59, 1993.
"Assault Rifles," Guns and Ammo Action Series vol. 10, #2, pp. 52-61, pp. 29, 41, 69.
"Functions of Stock M-16", Department of Army Technical Manual, pp. 18-28.
"Functional Theory Of Three-Round Burst Control", U.S. Marine Corps Technical Manual, Section 3, pp. 76-81.
"Long, Duncan, The AR-15/M-16", A Practical Guide, pp. 47-49, p. 64.

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